Millions of Apple customers will presumably mark their calendars today. Indeed, a day Apple customers have long awaited is finally upon us.

On September 25th, AT&T will at long last flip the switch on MMS service for Apple's iPhone 3G and 3GS customers.

Apple says that MMS (which allows instant messages to include embedded multimedia) will be enabled through a software update beginning that day. It should be noted, though, that the original iPhone will not be capable of transmitting MMS.

The announcement came today on the company's website.

We know that iPhone users will embrace MMS. The unique capabilities and high usage of the iPhone’s multimedia capabilities required us to work on our network MMS architecture to carry the expected record volumes of MMS traffic and ensure an excellent experience from Day One. We appreciate your patience as we work toward that end.

It's a long awaited move that, according to Kent German at CNET, finally inducts the iPhone "into the cell phone family."

Apple customers have been extraordinarily patient in waiting for this development (there have even been lawsuits inspired by the lack of MMS on the iPhone). So for many of us - but especially the litigious ones - September 25th simply can't come soon enough.

really? at&t still doesnt have it? sept 25th? lmao wow... canadians had something before americans??? OMG lol we got MMS in canada Rogers (canadian version of at&t) 2 weeks after iphone 3gs came out lmao..... REALLY... i still cant believe at&t took this long when canada has had it all this time lmao